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Mapel : MatematikaKelas : VII SMP
Bab : Segitiga
Pembahasan :
Total Sudut Segitiga = 180°
(5x + 6)° + (4x + 4)° + (x - 8)° = 180°
10x + 2 = 180
10x = 178
x = 17,8
(5x + 6) = 95°
(4x + 4) = 75,2°
(x - 8) = 9,8°
Segitiga Tumpul karena sudut nya diatas 90°